lfs-book/chapter06/iproute2.xml

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  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../general.ent">
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<sect1 id="ch-system-iproute2" role="wrap">
  <?dbhtml filename="iproute2.html"?>

  <sect1info condition="script">
    <productname>iproute2</productname>
    <productnumber>&iproute2-version;</productnumber>
    <address>&iproute2-url;</address>
  </sect1info>

  <title>IPRoute2-&iproute2-version;</title>

  <indexterm zone="ch-system-iproute2">
    <primary sortas="a-IPRoute2">IPRoute2</primary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <para>The IPRoute2 package contains programs for basic and advanced IPV4-based
    networking.</para>

    <segmentedlist>
      <segtitle>&buildtime;</segtitle>
      <segtitle>&diskspace;</segtitle>

      <seglistitem>
        <seg>&iproute2-ch6-sbu;</seg>
        <seg>&iproute2-ch6-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

  <sect2 role="installation">
    <title>Installation of IPRoute2</title>

    <para>Compile the package:</para>

<screen><userinput remap="make">make DESTDIR= SBINDIR=/sbin</userinput></screen>

    <variablelist>
      <title>The meaning of the make options:</title>

      <varlistentry>
        <term><parameter>DESTDIR=</parameter></term>
        <listitem>
          <para>This ensures that the IPRoute2 binaries will install into
          the correct directory. By default, <parameter>DESTDIR</parameter> is
          set to <filename class="directory">/usr</filename>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>SBINDIR=/sbin</parameter></term>
        <listitem>
          <para>This ensures that the IPRoute2 binaries will install into
          <filename class="directory">/sbin</filename>. This is the correct
          location according to the FHS, because some of the IPRoute2 binaries
          are used by the LFS-Bootscripts package.</para>
        </listitem>
      </varlistentry>

    </variablelist>

    <para>This package comes with a testsuite, but due to assumptions it makes,
    it is not possible to reliably run these tests from within the chroot
    environment. If you wish to run these tests after booting into your new LFS
    system, ensure you select <filename>/proc/config.gz</filename>
    CONFIG_IKCONFIG_PROC (&quot;General setup&quot; -> &quot;Enable access to
    .config through /proc/config.gz&quot;) support into your kernel then run
    'make alltests' from the <filename class="directory">testsuite/</filename>
    subdirectory.</para>

    <para>Install the package:</para>

<screen><userinput remap="install">make DESTDIR= SBINDIR=/sbin MANDIR=/usr/share/man \
     DOCDIR=/usr/share/doc/iproute2-&iproute2-version; install</userinput></screen>

    <para>The <command>arpd</command> binary links against the Berkeley DB
    libraries that reside in <filename class="directory">/usr</filename> and
    uses a database in <filename>/var/lib/arpd/arpd.db</filename>. Thus,
    according to the FHS, it must be in <filename
    class="directory">/usr/sbin</filename>. Move it there:</para>

    <screen><userinput remap="install">mv -v /sbin/arpd /usr/sbin</userinput></screen>

  </sect2>

  <sect2 id="contents-iproute2" role="content">
    <title>Contents of IPRoute2</title>

    <segmentedlist>
      <segtitle>Installed programs</segtitle>

      <seglistitem>
        <seg>arpd, ctstat (link to lnstat), genl, ifcfg, ifstat, ip, lnstat,
        nstat, routef, routel, rtacct, rtmon, rtpr, rtstat (link to lnstat), ss,
        and tc.</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="arpd">
        <term><command>arpd</command></term>
        <listitem>
          <para>Userspace ARP daemon, useful in really large networks, where the
          kernelspace ARP implementation is insufficient, or when setting up a
          honeypot</para>
          <indexterm zone="ch-system-iproute2 arpd">
            <primary sortas="b-arpd">arpd</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ctstat">
        <term><command>ctstat</command></term>
        <listitem>
          <para>Connection status utility</para>
          <indexterm zone="ch-system-iproute2 ctstat">
            <primary sortas="b-ctstat">ctstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="genl">
        <term><command>genl</command></term>
        <listitem>
          <para></para>
          <indexterm zone="ch-system-iproute2 genl">
            <primary sortas="b-genl">genl</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ifcfg">
        <term><command>ifcfg</command></term>
        <listitem>
          <para>A shell script wrapper for the <command>ip</command> command. 
          Note that it requires the <command>arping</command> and 
          <command>rdisk</command> programs from the 
          iputils package found at <ulink url="http://www.skbuff.net/iputils/"/>.</para>
          <indexterm zone="ch-system-iproute2 ifcfg">
            <primary sortas="b-ifcfg">ifcfg</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ifstat">
        <term><command>ifstat</command></term>
        <listitem>
          <para>Shows the interface statistics, including the amount of
          transmitted and received packets by interface</para>
          <indexterm zone="ch-system-iproute2 ifstat">
            <primary sortas="b-ifstat">ifstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ip">
        <term><command>ip</command></term>
        <listitem>
          <para>The main executable. It has several different functions:</para>

          <para><command>ip link <replaceable>&lt;device&gt;</replaceable></command>
          allows users to look at the state of devices and to make changes</para>

          <para><command>ip addr</command> allows users to look at addresses and
          their properties, add new addresses, and delete old ones</para>

          <para><command>ip neighbor</command> allows users to look at neighbor
          bindings and their properties, add new neighbor entries, and delete
          old ones</para>

          <para><command>ip rule</command> allows users to look at the routing
          policies and change them</para>

          <para><command>ip route</command> allows users to look at the routing
          table and change routing table rules</para>

          <para><command>ip tunnel</command> allows users to look at the IP
          tunnels and their properties, and change them</para>

          <para><command>ip maddr</command> allows users to look at the multicast
          addresses and their properties, and change them</para>

          <para><command>ip mroute</command> allows users to set, change, or
          delete the multicast routing</para>

          <para><command>ip monitor</command> allows users to continously monitor
          the state of devices, addresses and routes</para>
          <indexterm zone="ch-system-iproute2 ip">
            <primary sortas="b-ip">ip</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="lnstat">
        <term><command>lnstat</command></term>
        <listitem>
          <para>Provides Linux network statistics.  It is a generalized and more
          feature-complete replacement for the old <command>rtstat</command>
          program</para>
          <indexterm zone="ch-system-iproute2 lnstat">
            <primary sortas="b-lnstat">lnstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="nstat">
        <term><command>nstat</command></term>
        <listitem>
          <para>Shows network statistics</para>
          <indexterm zone="ch-system-iproute2 nstat">
            <primary sortas="b-nstat">nstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="routef">
        <term><command>routef</command></term>
        <listitem>
          <para>A component of <command>ip route</command>. This is for flushing
          the routing tables</para>
          <indexterm zone="ch-system-iproute2 routef">
            <primary sortas="b-routef">routef</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="routel">
        <term><command>routel</command></term>
        <listitem>
          <para>A component of <command>ip route</command>. This is for listing
          the routing tables</para>
          <indexterm zone="ch-system-iproute2 routel">
            <primary sortas="b-routel">routel</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtacct">
        <term><command>rtacct</command></term>
        <listitem>
          <para>Displays the contents of
          <filename>/proc/net/rt_acct</filename></para>
          <indexterm zone="ch-system-iproute2 rtacct">
            <primary sortas="b-rtacct">rtacct</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtmon">
        <term><command>rtmon</command></term>
        <listitem>
          <para>Route monitoring utility</para>
          <indexterm zone="ch-system-iproute2 rtmon">
            <primary sortas="b-rtmon">rtmon</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtpr">
        <term><command>rtpr</command></term>
        <listitem>
          <para>Converts the output of <command>ip -o</command> back into a
          readable form</para>
          <indexterm zone="ch-system-iproute2 rtpr">
            <primary sortas="b-rtpr">rtpr</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rtstat">
        <term><command>rtstat</command></term>
        <listitem>
          <para>Route status utility</para>
          <indexterm zone="ch-system-iproute2 rtstat">
            <primary sortas="b-rtstat">rtstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ss">
        <term><command>ss</command></term>
        <listitem>
          <para>Similar to the <command>netstat</command> command; shows active
          connections</para>
          <indexterm zone="ch-system-iproute2 ss">
            <primary sortas="b-ss">ss</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="tc">
        <term><command>tc</command></term>
        <listitem>
          <para>Traffic Controlling Executable; this is for Quality Of Service
          (QOS) and Class Of Service (COS) implementations</para>

          <para><command>tc qdisc</command> allows users to setup the queueing
          discipline</para>

          <para><command>tc class</command> allows users to setup classes based
          on the queuing discipline scheduling</para>

          <para><command>tc estimator</command> allows users to estimate the
          network flow into a network</para>

          <para><command>tc filter</command> allows users to setup the QOS/COS
          packet filtering</para>

          <para><command>tc policy</command> allows users to setup the QOS/COS
          policies</para>
          <indexterm zone="ch-system-iproute2 ss">
            <primary sortas="b-tc">tc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>